Steam ore-stamp



No. 608,423. Patented Aug. 2, |898.

' D. COLE;

STEAM ORE STAMP.

(Application led May 3, 1897.)

(No Model.) 6 Sheets-Sheet l.

1H: nonms PErzns co. Pnnfnumo.. WASHINGTON, n. c,

No. 608,423. Patented Aug. 2, |898.

D. COLE.

STEAM OBE STAMP.

(Application filed May 3, 1897.)

Mana# Patented Aug. 2, |898. D. COLE.

STEAM ORE STAMP.

(Application led May 3, 1897.) (No Model.) 6 Sheets-$heet v3.

DHV/D COLE.'-

ma nonms Pz'rzns Ao, Puma-urna.. wAsHmcrcN. u. c.

Patented Aug. 2, |898.

No. 608,423i

n. coLE. STEAM URE STAMP.

(Application filed May 3, 1897.)

' 6 Sheets-Sheet 4.

(No Model.)

maff i l @m No. 608,423 jPatented Aug.-2, |393` x v n. coLE.

STEAM ORE STAMP.

I (Application md may s, 18'91.) (No New 6 SheetsSheet 5.

, .l I L l me Nonms Pneus co4. Pnafumn. wAsmNn-ronl n, c

Nu. l608,423 Y Untamed. Aug.A 2, |393y n. con; y j

STEAMDRE STAMP.

(Appnmion med my s, i891.)

(No Model.)

lgawm 1.1M ...WMOO Q?. QQ

m: Noun ls frans w.. moraumo., wmnmfm. D. c.

UNET@ .STATES PATENT tric.;

DAVIDOOLE, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GATES IRON WORKS, OFILLINOIS.

STEAM AoRr-STArvl P.

SPECIFICATION forming part of Letters I latent No. 608,423, dated Angust2, 1898.

. y 4 Application filed May 3, 1897.v semina. 634,874'. (No maar To @ZZwhom, traag/,concern- Be .it known that` I, DAVID lOoLE, a citizen ofthe United States,l'residi1'xg at Chicago', in

the county of Oo'okand State of Illinois, have invented certain4new'faiid useful Improvements in Steam Ore-Stamps',`of which the fol--lowing is a specification.

The object of my invention is to provide the valve mechanism withefficient cushion-stops arranged outside the valve-chest.

A further object is to provide mechanism for adjusting the lateral'position of the stamps, so as toV equalize the wear caused by thecrushing of ore between the die and the shoe vWhichis attachedftotliestems; and the invention consists in the features, combinations,l anddetails of construction hereinafter described and claimed. l

In the accompanying drawings, Figurel is a front elevation ofy a steamore-'stamp constructed in accordance. with my improvements, part of themortar being broken away, so as to show the shoe attached to the sameand other parts; Fig. 2,`a'side elevation of the same with a portion ofthe mortar broken away; Fig. 3, a cross-sectional viewv of the cylindersand valve-chest, taken on line 3 3 y of Fig. 2, looking in the directionof the arrow; Fig. 4, a longitudinal sectional view of one of thecylinders and valve-chest, taken on the irregular line 4 4 of Fig. 3;Fig. 5, a

side elevation of the valve-chest, shown partly' in section, taken online 5 of Fig. 3, looking in the direction of the arrow; Fig. 6 isasection taken through line 6y 6 of Fig. 3; Fig. '7, a side elevationpofthe valve-rod, partly in section; Fig. 8, a plan view-of the under sideof the controlling slide-valve, with the piston for moving the sameshown in dotted outline; Fig. 9, a plan view ofthe top of theslidevalve', with the lpiston for moving the same shown in dottedoutline Figi'10, a plan view of the top of the valve-plate, looking` atit from line 10 10 of Fig. V3; Fig. 11, a plan view of the ybottom sideof the valve-plate, looking at it from line 11 11 ofFig. 8; Fig. 12, aplan view of the top of the cylinders to which the valve-'plate isattached, vlooking at itmfrom line 1212 of Fig. 3; Fig. 13, across-sectional view taken on line 13 13 of Fig. 8, Fig. 14, across-sectional view'taken on line 14 14 of Fig. 1, and Fig. 15 a frontelevation of the guide-blockand other parts shown particuylarly in Fig.Y14.

In constructing a steamstamp in accordance with my improvements I make aframe portion of the desired size,shape, and strength, adapted to holdand sustain the movable and other parts in operative position, and whichcomprises a base portion A, which contains the mortar B, four pillars orposts a, on which the cylinders O are mounted at the upper end thereof.The cylinders are provided with movable stamp-pistons O O2,having stemportions c' c2 projecting downwardly therefrom and carrying the shoes C?and O4, between which and the dies C5 the material is crushed orpulverized during the reciprocations of the pistons. The lower part ofthe cylinders is provided with stuffing-boxes cs and the upper part witha head D, which forms avalveplate on which the controlling-valveoperates. To permit the admission and exhaust of the steam from both ofsuch cylinders, I provide the valve-plate with a number of inlet andexhaust openings or parts,which connect with inlet and vexhaust passagesin the cylinder, the operation of which is controlled largely E, whichis moved back and forth upon its seat by means of a valve-rod F. Thisvalverod has stem portions f, projecting out of each lside of thevalve-casing, and which are provided with cushion-stops or buffers f f2,that are arranged to contact with stops f3 fLl on some ixed portion ofthe cylinder or valvecasing. In the drawings I have preferred to showthem as fixed to the heads of the valvecasing. I

. In order to set the valve, and vthereby' control the operation of thepistons and other parts, or to move the valve from one position toanother, I provide what I Aterm a starting-lever G and removably pivotit atg to a iixed portion of the valve-casing. This lever is providedwith a bifurcation g', that vstraddles a portion of one of thecushion-stops, so that the slide-valve may be moved by manual force fromone eXtreme to the other or to any point intermediate the same. Thislever is used merely for the purpose of starting the mechanism and isthen removed.

TOO

nection, thereby causing the said valve-rod, pistons, andcontrolling-valve to travel to their opposite limit of motion. Thisoperation is such as to connect the various ports necessary to alternatethe action .of the stamppistons. In this mechanism there is no provisionmade for exhausting the pressure from either end of the valve-pistonsexcept through the same port used for admitting the high pressure and byWay of the regularexhaust operated by the controlling-valve itself. Themovement of the valve-piston and valve is accomplished by the differenceof the high and low pressures on opposite ends of the valve-rod causedby the expansion and consequent lowering of the pressure in the cyliuderin which one of the stamp-pistons is descending. f

To regulate the amount of travel of the valve-rod and its attached partsand overcome the shock incident to such movement, as well as to providemeans for taking up the wear,

the cushion-stops or buffers above described` are provided, and attachedto the steam-chest are the stops above described, which are held inposition by means of studs P P. These studs are adjusted at equaldistances from the steam-chest to receive the stops, which are held inplace by means of nutson the ends Y of said studs. The ends of the valvestem or rod are threaded, so that the cushion-stops may be adjustedthereon' and regulate the travel of the valve, as well as compensate forthe wear on the buiers. l

In the use of mills of this kind it is found that some point or pointsof the face of; the shoe or die, or both, wears faster than otherportions, making it desirable and necessary to shift the position of agiven point on the faces of such parts and to hold it in such po-vsition until the uneven Wear is compensated for. In order to accomplishthis result, I provide the piston-stem with keyways or slides, asindicated at 1, 2, 3, 4, 5, and 6 in Fig-14. These keyways are of suchlength as to allow for the reciprocations of the stamp and for thelowering of the cylinder to compensate for the wear upon the shoes anddies. A

frame R is provided which carries the guidebloeks 7 and 8 and isprovided with two pair ofbosses 9 and l0 and 11 and 12, between which isremovably held the keys 13 and 14, which enter the desired slots orkeyways in the stamp-stems, such keys being held in the same adj ustablyby means of the set-screws 15 and 16. When it is ascertained that uuevenwear is taking place on the shoe or die, or both, the key of the stemcarrying such shoe or die may be withdrawn and the stem, with its shoeand die, rotated to a point that will tend to overcome this condition,the key reinserted, and the parts secured in position. The holding ofthe stem while the parts are operated in this manner will tend toequalize the wear and is a decided advantage over the rotation of theparts in a step-by-step automatic manner.

I claim- 1. In a steam ore-stamp, the combination of a cylinder,provided with a reciprocating piston, a reciprocating controlling-valvefor admitting and exhausting steam into and out of the cylinder tooperate the piston, aud provided with a valve-stem projecting outof thevalve-casing at each end, a cushion buffer-collar on each end of thevalve-rod, and stop mechanism arranged on a rigid portion of the machinebetween the valve-casing and the cushion -collars, substantially asdescribed.

2. In a steam ore-stamp, the combination of a cylinder provided with areciprocating stamp-piston provided with a plurality of lon` gitudinalslots or grooves arranged in alinement and parallel with the motions ofthe piston, a key removably secured to a rigid or immovable portion ofthe machine and adapted to enter one slot at a time, the whole soarranged that the lateral position of the stampstem with its top partsmay be changed by shifting the same and engaging the key with anothergroove, substantially as described.

DAVID COLE. Witnesses: v

PHILE'rUs W. GATES, W. R. TALBOT.

